document.write( "Question 1123247: Equal amounts are invested at 6%, 7%, and 9% annual interest. If the three investments yield a total of $880 annual interest, find the total investment. \n" ); document.write( "

Algebra.Com's Answer #739540 by ikleyn(52788) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "0.06x + 0.07x + 0.09x = 880.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Solve for x.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Then evaluate 3x.\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );